#index-page {
    background-image: linear-gradient( 135deg, #3B2667 10%, #BC78EC 100%);  
      position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

#index-page-background {
    background-image: url(./img/resource/land.png);
    background-position: right bottom;
    background-attachment: fixed; 
    background-repeat: no-repeat;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

#index-page-btns {
  position: relative;
  z-index: 10;
}

.btn-icon {
  font-size: 5em;
}

.index-page-btn {
  background-color: #FFC955;
  color: #3B2667;
}

@keyframes active-btn {
  from {
    background-color: #FFC955;
    color: #3B2667;
  }
  to {
    background-color: #3B2667;
    color: #FFC955;
  }
}

@keyframes normal-btn {
  from {
    background-color: #3B2667;
    color: #FFC955;
  }
  to {
    background-color: #FFC955;
    color: #3B2667;
  }
}

@keyframes first-time-btn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.index-page-typist {
  color: #FFC955;
  font-size: 5em;
  font-family: index-typist-font;
}

@font-face {
  font-family: 'index-typist-font';
  src: url("font/GEETYPEGaoYuanJiXianHeiTi-Shan-ZhunCu\(GEETYPE-TakaLineGB-Flash-Medium\)-2.ttf");
}

.dim-out {
  animation-name: dim-out-anim;
  animation-duration: 0.5s;
  animation-fill-mode: both;
}

.dim-in {
  animation-name: dim-in-anim;
  animation-duration: 0.5s;
  animation-delay: 0.5s;
  animation-fill-mode: both;
}

@keyframes dim-out-anim {
  from {
    display: block;
    opacity: 1;
  }
  to {
    display: none;
    opacity: 0;
  }
}

@keyframes dim-in-anim {
  from {
    display: none;
    opacity: 0;
  }
  to {
    display: block;
    opacity: 1;
  }
}